Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

The following tables represent a disaggregation of revenue from contracts with customers for the year ended December 31, 2019, by type of service from each reportable segment:



Revenues by Type of Service	Regulated Distribution		Regulated Transmission		Corporate/Other and Reconciling Adjustments (1)		Total
	(In millions)
Distribution services(2)	$	5,133	$	—	$	(83)	$	5,050
Retail generation	3,727		—		(57)		3,670
Wholesale sales(2)	411		—		12		423
Transmission(2)	—		1,510		—		1,510
Other	150		—		2		152
Total revenues from contracts with customers	$	9,421	$	1,510	$	(126)	$	10,805
ARP	181		—		—		181
Other non-customer revenue	96		16		(63)		49
Total revenues	$	9,698	$	1,526	$	(189)	$	11,035

(1) Includes eliminations and reconciling adjustments of inter-segment revenues.

(2) Includes reductions to revenue related to amounts subject to refund resulting from the Tax Act ($16 million at Regulated Distribution and $19 million at Regulated Transmission).

The following tables represent a disaggregation of revenue from contracts with customers for the year ended December 31, 2018, by type of service from each reportable segment:



Revenues by Type of Service	Regulated Distribution		Regulated Transmission		Corporate/Other and Reconciling Adjustments (1)		Total
	(In millions)
Distribution services(2)	$	5,159	$	—	$	(104)	$	5,055
Retail generation	3,936		—		(54)		3,882
Wholesale sales(2)	502		—		22		524
Transmission(2)	—		1,335		—		1,335
Other	144		—		4		148
Total revenues from contracts with customers	$	9,741	$	1,335	$	(132)	$	10,944
ARP	254		—		—		254
Other non-customer revenue	108		18		(63)		63
Total revenues	$	10,103	$	1,353	$	(195)	$	11,261

(1) Includes eliminations and reconciling adjustments of inter-segment revenues.

(2) Includes $147 million in net reductions to revenue related to amounts subject to refund resulting from the Tax Act ($131 million at Regulated Distribution and $16 million at Regulated Transmission).

The following table represents a disaggregation of the Regulated Distribution segment revenue from contracts with distribution service and retail generation customers for the years ended December 31, 2019 and 2018, by class:


	For the Years Ended December 31,
Revenues by Customer Class	2019		2018
	(In millions)
Residential	$	5,412	$	5,598
Commercial	2,252		2,350
Industrial	1,106		1,056
Other	90		91
Total	$	8,860	$	9,095

The following table represents a disaggregation of revenue from contracts with regulated transmission customers by transmission owner for the years ended December 31, 2019 and 2018 by transmission owner:


	For the Years Ended December 31,
Transmission Owner	2019		2018
	(In millions)
ATSI	$	754	$	664
TrAIL	242		237
MAIT	224		150
Other	290		284
Total Revenues	$	1,510	$	1,335